upstream/mercurial-mirror Files · tests/test-revset-dirstate-parents.t

revset: make descendants() lazier...

revset: make descendants() lazier Previously descendants() would force the provided subset to become a set. In the case of revsets like '(%ld::) - (%ld)' (as used by histedit) this would force the '- (%ld)' set to be evaluated, which produced a set containing every commit in the repo (except %ld). This takes 0.6s on large repos. This changes descendants to trust the subset to implement __contains__ efficiently, which improves the above revset to 0.16s. Shaving 0.4 seconds off of histedit. revset : (20000::) - (20000) 0) obsolete feature not enabled but 54243 markers found! ! wall 0.023640 comb 0.020000 user 0.020000 sys 0.000000 (best of 100) 1) obsolete feature not enabled but 54243 markers found! ! wall 0.019589 comb 0.020000 user 0.020000 sys 0.000000 (best of 100) This commit removes the final revset related perf hotspot from histedit. Combined with the previous two patches, they shave a little over 3 seconds off histedit on large repos.

Mads Kiilerich - - Load All Authors

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             test-revset-dirstate-parents.t
        
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        $ HGENCODING=utf-8

        $ export HGENCODING

        $ try() {

        >   hg debugrevspec --debug $@

        > }

        $ log() {

        >   hg log --template '{rev}\n' -r "$1"

        > }

        $ hg init repo

        $ cd repo

        $ try 'p1()'

        (func

          ('symbol', 'p1')

          None)

        $ try 'p2()'

        (func

          ('symbol', 'p2')

          None)

        $ try 'parents()'

        (func

          ('symbol', 'parents')

          None)

      null revision

        $ log 'p1()'

        $ log 'p2()'

        $ log 'parents()'

      working dir with a single parent

        $ echo a > a

        $ hg ci -Aqm0

        $ log 'p1()'

        0

        $ log 'tag() and p1()'

        $ log 'p2()'

        $ log 'parents()'

        0

        $ log 'tag() and parents()'

      merge in progress

        $ echo b > b

        $ hg ci -Aqm1

        $ hg up -q 0

        $ echo c > c

        $ hg ci -Aqm2

        $ hg merge -q

        $ log 'p1()'

        2

        $ log 'p2()'

        1

        $ log 'tag() and p2()'

        $ log 'parents()'

        1

        2

        $ cd ..

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				$ HGENCODING=utf-8
				$ export HGENCODING

				$ try() {
				> hg debugrevspec --debug $@
				> }

				$ log() {
				> hg log --template '{rev}\n' -r "$1"
				> }

				$ hg init repo
				$ cd repo

				$ try 'p1()'
				(func
				('symbol', 'p1')
				None)
				$ try 'p2()'
				(func
				('symbol', 'p2')
				None)
				$ try 'parents()'
				(func
				('symbol', 'parents')
				None)

				null revision
				$ log 'p1()'
				$ log 'p2()'
				$ log 'parents()'

				working dir with a single parent
				$ echo a > a
				$ hg ci -Aqm0
				$ log 'p1()'
				0
				$ log 'tag() and p1()'
				$ log 'p2()'
				$ log 'parents()'
				0
				$ log 'tag() and parents()'

				merge in progress
				$ echo b > b
				$ hg ci -Aqm1
				$ hg up -q 0
				$ echo c > c
				$ hg ci -Aqm2
				$ hg merge -q
				$ log 'p1()'
				2
				$ log 'p2()'
				1
				$ log 'tag() and p2()'
				$ log 'parents()'
				1
				2

				$ cd ..